Every year, there are four cutoffs for the USAMO, depending on whether the contestant took the AMC 12A or 12B, and whether the contestant took the AIME I or II. This market asks for the maximum among these four cutoffs.

Note that this year, the AMC index is calculated as AMC + 20 AIME (instead of AMC + 10 AIME), so it maxes out at 450 (instead of 300). Also there may be many cheaters on AIME, similar to what happened with AMC.